Home / 21,799.84-32,712.24-9,318.40

Finding the Fourth Proportional to 21,799.84, 32,712.24 and 9,318.40

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Solution

The fourth proportional to 21,799.84, 32,712.24 and 9,318.40 is: 13,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.84 : 32,712.24 = 9,318.40 : x
  2. Step 2: Convert to fraction form
    21,799.84/32,712.24 = 9,318.40/x
  3. Step 3: Cross multiply
    21,799.84x = 32,712.24 × 9,318.40
  4. Step 4: Simplify right side
    21,799.84x = 304,825,737.22
  5. Step 5: Solve for x
    x = 304,825,737.22/21,799.84
  6. Step 6: Final answer
    x = 13,982.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.